CVE-2026-86300: medium-severity vulnerability in Tenda AC9
Tenda AC9 Web Management R7WebsSecurityHandler improper authentication
Published · Updated
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33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 6.9epss 0.8%
A flaw has been found in Tenda AC9 15.03.05.14. This impacts the function R7WebsSecurityHandler of the component Web Management. This manipulation causes improper authentication. The attack may be initiated remotely. The exploit has been published and may be used.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
Tenda · AC9public PoCs found — 1
cve_referencegithub.com/limou89/somevul/blob/main/Tenda_AC9_fast_setting_wifi_set_Unauth_Password.mdunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Tenda AC9
In the same product, most dangerous first.
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References
https://github.com/limou89/somevul/blob/main/Tenda_AC9_fast_setting_wifi_set_Unauth_Password.mdhttps://github.com/limou89/somevul/blob/main/Tenda_AC9_getProduct_Info_Disclosure.mdhttps://vuldb.com/cve/CVE-2026-86300https://vuldb.com/submit/906606https://vuldb.com/submit/906607https://vuldb.com/submit/906608https://vuldb.com/vuln/399464https://vuldb.com/vuln/399464/ctihttps://www.tenda.com.cn/